Indiana Administrative Code
Title 675 - FIRE PREVENTION AND BUILDING SAFETY COMMISSION
Article 14 - ONE AND TWO FAMILY DWELLING CODE
Rule 4.4 - 2020 Indiana Residential Code
Section 4.4-78 - Table R703.8.4(1); tie attachment and airspace requirements
Current through March 20, 2024
Authority: IC 22-13-2-2; IC 22-13-2-2.5; IC 22-13-2-13
Affected: IC 22-12; IC 22-13; IC 22-14; IC 22-15; IC 36-7
Sec. 78.
Change TABLE R703.8.4(1) to read as follows:
TABLE R703.8.4(1) | ||||
TIE ATTACHMENT AND AIRSPACE REQUIREMENTS | ||||
BACKING AND TIE | MINIMUM TIE | MINIMUM TIE FASTENERa | AIRSPACEc | |
Wood stud backing with corrugated sheet metal | 22 U.S. gage (0.0299 in.) x 7/8 in. wide | 8d common nailb (2 1/2 in. x 0.131 in.) | 3/4 in. minimum between sheathing and veneer | |
Wood stud backing with metal strand wire | W1.7 (No. 9 U.S. gage; 0.148 in.) with hook embedded in mortar joint | 8d common nailb (2 1/2 in. x 0.131 in.) | 3/4 in. minimum between sheathing and veneer | Maximum 4 1/2 in. between backing and veneer |
Cold-formed steel stud backing with adjustable metal strand wire | W1.7 (No. 9 U.S. gage; 0.148 in.) with hook embedded in mortar joint | No. 10 screw extending through the steel framing a minimum of three exposed threads | 3/4 in. minimum between sheathing and veneer | Maximum 4 1/2 in. between backing and veneer |
For SI: 1 inch = 25.4 mm.
a. In seismic design category D0, D1, or D2, the minimum tie fastener shall be an 8d ring-shank nail (2 1/2 in. x 0.131 in.) or a No. 10 screw extending through the steel framing a minimum of three exposed threads.
b. All fasteners shall have rust-inhibitive coating suitable for the installation in which they are being used, or be manufactured from material not susceptible to corrosion.
c. Mortar is permitted to encroach into the airspace or make incidental contact with the sheathing or the sheathing paper or equivalent.